Stress Sensors for Roof Security Systems
Stress sensors (Pulsors) manufactured by Sure Action offer complete alarm protection for securing roofs.

Stress sensors offer stable, reliable security coverage for flat and low-grade pitched roofs.  Stress sensors are invisible.  They mount on the beams under the roofing material and respond to minute flexes caused by a person walking on the roof.    Pulsor stress sensors are effective on almost any type of roofing material.  Most roof applications require the Enhanced Stress Sensors (ENHP+).  If the roof is supported by large, steel, open-web joists,  the High Performance Stress Sensor provides optimal sensitivity.   Important Note:  For roof applications, stress sensors must be installed in even numbers.

• Enhanced Stress Sensors (ENHP+)
  Used for most roof applications.  
  • ENHP+ - one Pulsor stress sensor
  • ENHP6+ - package of 6 Pulsor stress sensors
  • ENHP12+ - package of 12 Pulsor stress sensors
    
    
    
• High-Performance Stress Sensors (HPP+)
  Used for extremely stiff flooring such as engineered trusses.
  • HPP+ - one High-Performance stress sensor
  • HPP6+ - package of 6 High Performance stress sensors
  • HPP12+ - package of 12 High Performance stress sensors
    
    
    

• Processors - Needed for ENHP+ or HPP+ (Outdoor Applications such as roof or deck)
  MG111 or MG313 Processor.  The MG111 Processor has one zone.  The MG313 has three zones.  Up to 4 stress sensors can be wired per zone.

Stress Sensors for Roof Alarms

When planning a roof security system, an installer needs to look at the project strategically.   Initially, a security installer may be tempted to install enough stress sensors to secure every inch of roof.  The rationale behind this strategy focuses on making the roof impenetrable, impossible to circumvent.   This, however, is overkill, inefficient and costly.   Instead, a roof security system needs to target key locations and pieces of property. 

How Do Sure Action Stress Sensors Work?

Sure Action stress sensors are epoxied to the bottom-edge of a support beam or truss.  The sensors detect even the slightest movement in the beam and trigger the processor, which in turn alerts the alarm control.  

The area covered by each sensor is adjustable by zone.  Sure Action stress sensors provide an oval of protection approximately 7' down and 4' across.  The 7'x4' oval is the standard setting for security applications.   

For roofing applications,  Sure Action stress sensors should ideally be epoxied to the bottom of the roof trusses; however, if sheetrock is attached to the beams, the Pulsor stress sensors need to be mounted on the side of the beam. 

How to Design a Roof Security System using Stress Sensors?

When deciding how to design a Pulsor alarm system for a roof application, an installer needs to consider several points.   Stress sensor need to be located around any high security equipment located on the roof, such as air conditioning units or air vents.   Sensors should also be placed near doors and then strategically placed around the rest of the roof.

While Sure Action stress sensors are most frequently installed for flat roofs, they work well on low-grade pitched roofs too.  For this kind of installation, Pulsors need to be placed near the bottom-edge of the roof where the roofing structure is stiffest.

For additional information about Sure Action Pulsor stress sensors for roofsecurity applications, please contact us at (800) 648-4301 or (631) 728-3986.   We will gladly assist in designing the system's layout.